Scope of application: The temperature control range of mechanical thermostats is from 0℃ to 60℃, perfect for using to control heater, filter fan and other signal device in your home, market and so on Adjustable design: Temperature controller has a large data scale and an adjustable button is for easy and convenient to adjust the controlling temperature, and the button color(red/blue) of thermostat could be choose for you Easy to install: The thermostat switch adopting standard rail clip design, 4 feet holders, easy to install and disassemble Durable and sturdy: The shell of our thermostat is made of plastic material with fine workmanship, safe, durable to use Safe and reliable: Circuit interfaces in the bottom of thermostat can make wire connection become more sturdy and safer